Official documentation from who? For which audience? For which use case?
Making a bootable image for what kind of system? My Ryzen PC needs a very different image to my aarch64 router.
Where have you not seen info on "installing a bootloader to a target disk"? This is what every distro installer does - this can range from putting a kernel in an EFI partition and setting a variable to building a uboot image and setting variables in NVRAM
Lastly, what do you class as a "decent installer process"? Things have moved on from Slackware's installer. You've got everything from the Debian installer (which hasn't changed much) to Anaconda (let's run the install UI in a browser) to Ubuntu Server (everything is a container!) and many things in between.
Official documentation from who? For which audience? For which use case?
Making a bootable image for what kind of system? My Ryzen PC needs a very different image to my aarch64 router.
Where have you not seen info on "installing a bootloader to a target disk"? This is what every distro installer does - this can range from putting a kernel in an EFI partition and setting a variable to building a uboot image and setting variables in NVRAM
Lastly, what do you class as a "decent installer process"? Things have moved on from Slackware's installer. You've got everything from the Debian installer (which hasn't changed much) to Anaconda (let's run the install UI in a browser) to Ubuntu Server (everything is a container!) and many things in between.